Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Chalcophyllite from
Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia


Locality type:Mine
Classification
Species:Chalcophyllite
Formula:Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcophyllite data
Locality Data:Click here to view Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:3490
Long-form Identifier:1:3:3490:6
GUID (UUID V4):0
References
[MinRec 8:Tsumeb 22]
 
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